Index: clangd/XRefs.cpp
===================================================================
--- clangd/XRefs.cpp
+++ clangd/XRefs.cpp
@@ -215,6 +215,7 @@
   IndexOpts.SystemSymbolFilter =
       index::IndexingOptions::SystemSymbolFilterKind::All;
   IndexOpts.IndexFunctionLocals = true;
+  IndexOpts.IndexParametersInDeclarations = true;
   indexTopLevelDecls(AST.getASTContext(), AST.getPreprocessor(),
                      AST.getLocalTopLevelDecls(), DeclMacrosFinder, IndexOpts);
 
Index: unittests/clangd/SymbolInfoTests.cpp
===================================================================
--- unittests/clangd/SymbolInfoTests.cpp
+++ unittests/clangd/SymbolInfoTests.cpp
@@ -301,6 +301,12 @@
           }
         )cpp",
               {CreateExpectedSymbolDetails("bar", "foo::", "c:@E@foo@bar")}},
+          {
+              R"cpp( // Parameters in declarations
+          void foo(int ba^r);
+        )cpp",
+              {CreateExpectedSymbolDetails("bar", "foo",
+                                           "c:TestTU.cpp@50@F@foo#I#@bar")}},
           {
               R"cpp( // Type inferrence with auto keyword
           struct foo {};